Method of impregnating and coating materials.



L. P. DESTRIBATS.

METHOD 0F IMPREGNATING AND COATING MATERIALS.

APPLICATION min 11111126. 1910. y LMWW@ Patented 11111.13,1915.

L. P. DESTRIBATS.4 METHOD 0F IMPREGNATING AND comms-MATERIALS.

APPLICATION FILED IULY 26, I9I0.

Patented Apr. 113, 11915.

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Louis P.- DEs'rJaiBA'rs, or TRENTON, NEW JERSEY.

METHOF MPREGNATING ANI) COATING MATERIALS.

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Specification of Letters Patent.

Patented Apr. 13, 1915.

Application filed July 26, 1910. Serial No. 573,831.

To all whom it may concern:

13e 1t known that l, Louis P. DEs'rniBA'rs, a cltlzen of France, and resident of rfrenton,

.in the county of Mercer and State of New in the ordinary manner, where the air is not exhausted from the material, certain particles of air will remain in thevmaterial thus causing bubbles to -form therein during the impregnating and coating process, which bubbles, as they burst, expose non-impregnated or coated portions of the material to external atmosphere and thus materially impair the quality and usefulness of the Inaterial for the purposes intended. rllhe object of this invention is to provide f a new method for obvia-ting the above faults, which method consists in first exhausting the air from the material and then passing the material through a liquidbath before exposing the material to external atmosphere, the said material being preferably thoroughly dried while the air is exhausted therefrom.

ln the accompanying drawings, l have shown an apparatus for carrying out my im proved method, said apparatus being particularly intended for use in carrying out the method for use in connection with fabrlcs.

Figure l represents an apparatus adapted for treating a fabric, in top plan, Fig. 2

is a longitudinal vertical central section through the same, Fig. 3 is an end view, a portion of the door for the vacuum chamber being broken away to more clearly show the parts within the chamber, and Fig. 4 is a transverse section taken in the plane vof the line A--A of Fig. 2.

as provided with a door 9 hinged at 10 to the body portion of the vessel 7. 'llhis door may be provided with a packing 11' for sealing the door air-tight when closed, bolts 12 or other suitable fastening devices serving to, lock the door in its closed position. rlhe truck bearing the roll of fabric may be moved into and out of the vessel 7 when the door 9 is opened by inserting a removable track section 6^, indicated in dotted lines, between the track sections 6 within and without the 'vessel 7. rllhis track section 6* is removable to permit thevopening and closing of the door 9. The interior of the vessel 7 may have the air exhausted therefrom in any suitable manner, as, for instance, by an air exhausting pump 13 of well known and approved form. An annular series of steam pipes 14 is properly supported within the vessel 7 around the roll of fabric 1, which steam pipes may be provided with the usual steam inlet and outlet pipes 15, 16, extending through the end wall' 8 of the vessel. A liquid container 17 is mounted upon the top of the vessel 7, which liquid container is provided with a slot 18 in its bottom, through which slot the fabric is led vfrom within. the vessel 7 into the liquid container 17 for engagement with the liquid therein before the fabric comes in contact with external atmosphere.

Suitable flaps 19 may be provided in the lbottom of the container 17 for engaging the opposite sides ofthe fabric as it leaves the slot 18 for preventing the liquid within the container 17 from being drawninto the interior of the vessel 7. rlhe fabric web,

as it leaves the liquid container 17, may.

be wound into a roll on a suitable core 20 having trunnions 21 supported by brackets 22 on uprights 23. A suitable heater 24 is located between the liquid container 17 and the winding roll for the purpose of drying the liquid impregnated and coated fabric. The fabric as it leaves' the liquid container 17 may also pass through a pair' of rolls 25 arranged tolead the fabric web from aroll 26 located within the vessel 7 straight through the slot 18 in the bottom of the liquid container 17. To thoroughly dry the fabric within the vessel 7, the fabric, as it leaves the roll, is passed around the longitudinally extended branches of the steam pipe within the vessel'before being led around the roll 26 and upwardly through the liquid in the container 17.

loo

It will be seen from the above descripytion that by inserting the roll of fabric to be treated into the vessel 7 and then exhausting the-air from the said receptacle, that the air is also exhausted from the fabric. At the same time, the fabric is also thoroughly dried .by the steam pipes hereinabove described or by any other suitable drying apparatus. The fabric is then led through the liquid in thecontainer 17 thus permitting the liquid to thoroughly impregnate the fabric as Well as coat the opposite sides lthereof before the fabric comes into contact With external atmosphere.

While I have described this method in connection with an apparatus for treating fabric, it is to be understood that the same' methodlmay7 ,be readily employed for treating other materials, Such as cords, cables, and the like, Without departing from the spirit and scope of my invention.

It Will also be observed that by the use of the method herein described, a complete impregnation and coating of the material 4 is provided andthe formation of air bubbles in the fabric is absolutely prevented.

It is further to be understood that when and passing it, in the form of a single layer,

about in the vessel so that the vacuum will affect all sides of the fabric; and fourth, passing the fabric in the form of a single layer out of said vessel and through another .l

vessel containing a liquid bath before ex posing the material to external atmosphere.

In testimony, that I claim the foregoing as my invention I have signed my name in presence of tWo Witnesses, this twenty-third day of, June 1910.

LOUIS P. DESTRIBATS.

Witnesses:

' F. GEORGE BARRY,

OTTO WV. I-IoLicnEN. 

